John Carvalho is the COO of bitrefill.com, which allows users to purchase giftcards with crypto for a huge array of products and services all over the world. He is also respected for his thoughtful writing, which represents a valuable contribution to the space, and helps many people understand better what bitcoin is and how it works.

Enjoy!

More from John:

WEBSITE: https://www.bitrefill.com/

TWITTER: https://twitter.com/johnkvallis

More from Me:

TWITTER: http://bit.ly/2P7PUjA

FACEBOOK: http://bit.ly/30lRjUB

INSTAGRAM: http://bit.ly/30r7IqY

YOUTUBE: http://bit.ly/2TDeMy9

MEDIUM: http://bit.ly/2Zk0Dex